Tool-support for tools or tool-holders.



G.O.BARNES. TOOL SUPPORT FOR TOOLS OR TOOL HOLDERS.

APPLICATION FILED NOV.3.1908.

Patented Nov. 30, 1909.

Winn:

w W m GROVER C. BARNES, OF POR'I'VUE, PENNSYLVANIA.

TOOL-SUPPORT FOR TOOLS 0R TOOL-HOLDERS.

Specification of Letters Patent.

Application filed November 3, 1908.

Patented Nov. 30, 1909.

Serial No. 460,857.

To all whom it may concern:

Be it known that I, GRovnn C. BARNES, a citizen of the United States of America, residing at Portvue, im the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Tool-Supports for Tools or Tool-Holders, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a tool support for tools or tool holders, and the object of my invention is to provide a rotary tool support wherein positive and reliable means are employed for moving the tools or tool holders carried thereby, and locking the same in an adjusted position.

Another object of my invention is to provide a tool support of strong and durable construction for positively holding tools during the operation of the support, the tools being arranged whereby a high degree of efi'iciency can be obtained without permitting the tools to shift or recede from an operable position.

With the above and other objects in view which will more readily appear as the invention is better understood, the same 0011- sists in the novel construction, combination and arrangement of parts to be hereinafter described and claimed.

Referring to the drawings :--Figure 1 is an end view of a tool support with cutting tools mounted therein, Fig. 2 is a longitudinal sectional view of the same, Fig. 3 is a longitudinal sectional view of a modified form of support.

To put my invention into practice, I provide a cylindrical supporting body 1 with a longitudinal bore 2 having the forward end thereof enlarged, as at 3, and provided with an annular tapering shoulder 4. The forward end of the bore 2 is interiorly threaded, as at 3*, and is provided with four radially disposed slots 5, these slots being equally spaced apart.

Movably mounted in the bore 2 is an adjusting member comprising a shank 6 having a rear beveled end 7 and a head 8 fitting in the enlarged end 3 of the bore 2. Between the shank 6 and the head 8 is an annular beveled shoulder 9 adapted to engage the shoulder 4 of the bore 2. The head is formed with a forward tapering bearing 10 for the inner beveled edges 11 of tools or tool holders 12 adapted to fit in the slots 5 of the supporting body 1.

Screwed into the enlarged end of the bore 2 is a plug 13 having a nut 14. The inner end of the plug 13 is provided with a socket 15 confronting a socket 16 formed in the forward end of the bearing 10. In the sockets 15 and 16 extend the ends of a coil spring 17 interposed between the plugs 13 and the bearing 10.

Movably mounted upon the supporting body 1 is a sleeve 18 having a forward beveled end 19 for engaging the rear beveled edges 20 of the tools or tool holders 12. This sleeve is retained in engagement with the tools 12 by a knurled nut 21 threaded upon the supporting body 1.

Threaded in the supporting body 1 and extending into the rear end of the bore 2 is a set screw 22 having a beveled end 23 for engaging the beveled end 7 of the shank 6. To adjust the tools 12 and move the same outwardly, the screw 22 is rotated to force the shank 6 forward, and the tapering hearing 10 is adapted to force the tools 12 outwardly. The knurled nut 21 can then be screwed to bind the sleeve 18 against the rear beveled edges 20 of the tools, with the forward inner edges 24 of said tools binding against the supporting body 1.

To allow the tools 12 to recede into the supporting body 1, the screw 22 is adjusted and the tension of the spring 17 is adapted to force the tapering bearing 10 rearwardly. To hold the tools in a receded position, the nut 21 can be again tightened to bind the sleeve 18 against the beveled edges 20 of the tools.

In the modification shown in Fig. 3, the construction is the same as that shown in Figs. 1 and 2 with the following diifereneces, that the adjusting member 6 is formed with a tapering end 6 the beveled shoulder 9 and head 8 being dispensed with as well as the socket 16 in the projecting end of the memher. In the construction shown in Fig. 3, the spring l7 abuts against the tapered end 6". In Fig. 3 the tools 12 are of a different construction from that of the tools 12 and in this connection it will be stated that the tools 12 are provided with notches 46 to receive the sleeve 18. The supporting member which is indicated by the reference character 1 is provided with a flange 1" which extends over the sleeve 18 and serves to guide the cutters beyond the point of contact of the clamping sleeve 18. Otherwise than that as stated the construction shown in Fig. 3 is the same as that illustrated in Figs. 1 and 2, the same reference characters being applied thereto.

Having now described my invention what I claim as new, is

1. A tool support comprising a body, said body having a bore formed therein, said body having radially disposed slots formed therein communicating with said bore, an adjusting member movably mounted in the bore of said body and having a rear beveled end, means mounted in said body for engaging the rear beveled end of said member, a tapering bearing carried by the forward end of said member and adapted to engage tools mounted in the openings of said body, a plug threaded in the forward end of said borc,'a spring interposed between said plug and the tapering bearing of said member, a sleeve loosely mounted upon said body for engaging the rear beveled edges of the tools, and means for holding said sleeve in engagement With the tools.

2. A tool support comprising a body, said body having radially disposed slots formed therein adapted to receive tools, an adj usting member movably mounted in said bore and having a rear beveled end, means mounted in said body and adapted to engage the beveled end of said member, a tapering bearing carried by the forward end of said member for engaging the inner beveled edges of tools, a plug threaded in the forward end of said bore, a spring interposed between said plug and the tapering bearing of said member, and means carried by said body for engaging tools and locking tools in engagement with said tapering bearing.

3. A tool support comprising a body, said body having openings formed therein, elements extending into said openings, an adjusting member movably mounted in said body for engaging said elements and moving said elements outwardly, a plug carried by said body, a spring interposed between said plug and said member for moving said member and allowing said elements to recede into said openings, and means for holding the adjusting member against longitudinal movement in a direction opposite to that to which the spring acts.

4. A tool support comprising a body, said body having openings formed therein, an adjusting member located in said body, elements extending into said openings for engaging said member, a plug carried by said body, a yieldable means interposed between said plug and said member for moving said member rearwardly to allow said elements to recede into said openings, and means carried by said body for moving said member and forcing said elements outwardly from said body.

5. A tool support comprising a body portion provided with openings, an adjusting element arranged within said body, elements extending through said openings and engaging said member, means for closing one end of said body, means interposed between said closing means and said member for moving said member rearwardly to allow of said elements to recede into said openings, and means for holding the adjusting member against longitudinal movement in an opposite direction.

6. A tool support comprising a body portion provided with openings, an adjusting element arranged within said body, elements extending through said openings and engaging said member, means for closing one end of said body, means interposed between said closing means and said member for moving said member rearwardly to allow of said elements to recede into said openings, means for holding the adjusting member against longitudinal movement in an opposite direction, and means arranged exteriorly of said body for lockin said elements in their adjusted position.

In testimony whereof I aflix my signature in the presence of two witnesses.

GROVER O. BARNES.

lVitnesses Cnas. J. KoUoI-IAN, J. AUnLnY Pinnon. 

